diff --git a/xz.changes b/xz.changes
index 73c61fb..c039c9c 100644
--- a/xz.changes
+++ b/xz.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Wed Aug 16 13:58:09 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- xznew: Remove bashsism.
+- build: pass CONFIG_SHELL=/bin/sh to configure: the posix tools
+  are setting the current SHELL as the shebang, which is overkill:
+  any posix compliant shell, aka /bin/sh, is sufficient.
+
 -------------------------------------------------------------------
 Thu Aug  3 07:01:39 UTC 2023 - Paolo Stivanin <info@paolostivanin.com>
 
diff --git a/xz.spec b/xz.spec
index 180a0a8..5fed776 100644
--- a/xz.spec
+++ b/xz.spec
@@ -83,7 +83,7 @@ export LDFLAGS="-Wl,-z,relro,-z,now -pie"
 %configure \
   --with-pic \
   --docdir=%{_docdir}/%{name} \
-  --disable-static
+  --disable-static CONFIG_SHELL=/bin/sh
 %if 0%{?do_profiling}
   %make_build CFLAGS="${CFLAGS} %{cflags_profile_generate}"
   %make_build
diff --git a/xznew b/xznew
index 744913d..e48c258 100644
--- a/xznew
+++ b/xznew
@@ -52,7 +52,7 @@ if test -z "$cpmod" && ${TOUCH-touch} -r $tmp/1 $tmp/2 2>/dev/null; then
 fi
 
 # check about xz extension
-xz $tmp/1 &> /dev/null
+xz $tmp/1 > /dev/null 2>&1
 ext=`echo $tmp/1* | sed "s|$tmp/1||"`
 rm -rf $tmp/
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